An FTTH (fibre to the home) cable itself consumes very little energy, around 0.07 watts. In comparison, a typical RJ45 cable (copper Ethernet) consumes around 3 watts. This makes fibre optic cables much more energy efficient in operation and can lead to lower operating costs and a smaller environmental footprint in the long term.
Hello Anonymous; I can only answer your questions poorly. The price difference is probably not in the cable, but in the necessary cable unit. At the time, I only received the cable without a cable lug from digitec. This, bought separately, cost at least another CHF 30
And a kink in an optical cable is a no-go. The trick is to make the arc over a curve with several times the length of a 90° arc. The arc is therefore to be laid in 3-dimensional and not just in one plane. I hope to have helped a little anyway. Greetings from Central Switzerland.